Hilti AG 125-A22, Operating Instructions Manual

Page: 32 / 342

5.2 Additional safety instructions
5.2.1 Safety warnings common for grinding,
danding, wire brushing, polishing or
abrasive cutting-off operations
a) This power tool is intended to function as a
grinder, sander, wire brush or cut-off tool. Read
all safety warnings, instructions, illustrations
and specifications provided with this power tool.
Failure to follow all instructions listed below may
result in electric shock, fire and/or serious injury.
b) Operations such polishing are not recommen-
ded to be performed with this power tool
Oper-
ations for which the power tool was not designed
may create a hazard and cause personal injury.
c) Do not use accessories which are not specific-
ally designed and recommended by the tool
manufacturer.
Just because the accessory can
be attached to your power tool, it does not assure
safe operation.
d) The rated speed of the accessory must be at
least equal to the maximum speed marked on
the power tool.
Accessories running faster than
their rated speed can break and fly apart.
e) The outside diameter and the thickness of your
accessory must be within the capacity rating
of your power tool.
Incorrectly sized accessories
cannot be adequately guarded or controlled.
f) The arbour size of wheels, flanges, backing
pads or any other accessory must properly fit
the spindle of the power tool.
Accessories with
arbour holes that do not match the mounting
hardware of the power tool will run out of balance,
vibrate excessively and may cause loss of control.
g) Do not use a damaged accessory. Before each
use inspect the accessory such as abrasive
wheels for chips and cracks, backing pad for
cracks, tear or excess wear, wire brush for
loose or cracked wires. If power tool or access-
ory is dropped, inspect for damage or install
an undamaged accessory. After inspecting and
installing an accessory, position yourself and
bystanders away from the plane of the rotating
accessory and run the power tool at maximum
no-load speed for one minute.
Damaged ac-
cessories will normally break apart during this
test time.
h) Wear personal protective equipment. Depend-
ing on application, use face shield, safety
goggles or safety glasses. As appropriate, wear
dust mask, hearing protectors, gloves and work-
shop apron capable of stopping small abrasive
or workpiece fragments.
The eye protection must
be capable of stopping flying debris generated by
various operations. The dust mask or respirator
must be capable of filtrating particles generated
by your operation. Prolonged exposure to high
intensity noise may cause hearing loss.
i) Keep bystanders a safe distance away from
work area. Anyone entering the work area must
wear personal protective equipment.
Fragments
of workpiece or of a broken accessory may fly
away and cause injury beyond immediate area of
operation.
j) Hold the power tool by insulated gripping sur-
faces only, when performing an operation where
the cutting accessory may contact hidden wiring
or its own cord.
Cutting accessory contacting a
"live" wire may make exposed metal parts of the
power tool "live" and could give the operator an
electric shock.
k) Position the cord clear of the spinning access-
ory.
If you lose control, the cord may be cut or
snagged and your hand or arm may be pulled into
the spinning accessory.
l) Never lay the power tool down until the access-
ory has come to a complete stop.
The spinning
accessory may grab the surface and pull the
power tool out of your control.
m) Do not run the power tool while carrying it at
your side.
Accidental contact with the spinning
accessory could snag your clothing, pulling the
accessory into your body.
n) Regularly clean the power tool’s air vents. The
motor’s fan will draw the dust inside the housing
and excessive accumulation of powdered metal
may cause electrical hazards.
o) Do not operate the power tool near flammable
materials.
Sparks could ignite these materials.
p) Do not use accessories that require liquid
coolants.
Using water or other liquid coolants
may result in electrocution or shock.
5.2.2 Kickback and related warnings
Kickback is a sudden reaction to a pinched or snagged
rotating wheel, backing pad, brush or any other
accessory. Pinching or snagging causes rapid stalling
of the rotating accessory which in turn causes the
uncontrolled power tool to be forced in the direction
opposite of the accessory’s rotation at the point of
the binding.
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Printed: 31.07.2012 | Doc-Nr: PUB / 5071441 / 000 / 00